发明授权
- 专利标题: Process for the continuous preparation of trioxane
- 专利标题(中): 连续制备三恶烷的方法
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申请号: US808846申请日: 1985-12-13
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公开(公告)号: US4703129A公开(公告)日: 1987-10-27
- 发明人: Karl-Friedrich Muck , Karlheinz Burg
- 申请人: Karl-Friedrich Muck , Karlheinz Burg
- 申请人地址: DEX Frankfurt am Main
- 专利权人: Hoechst Aktiengesellschaft
- 当前专利权人: Hoechst Aktiengesellschaft
- 当前专利权人地址: DEX Frankfurt am Main
- 优先权: DEX3445921 19841217
- 主分类号: C07D323/06
- IPC分类号: C07D323/06 ; C07D325/00 ; C07D317/12 ; C07D319/06
摘要:
The invention relates to a process for the continuous preparation of trioxane, optionally together with cyclic formals, from an aqueous formaldehyde solution in the presence of acidic solid-bed catalysts, the reaction taking place without simultaneous evaporation.The process according to the invention can be carried out even at high formaldehyde concentrations without appreciable paraformaldehyde deposits.
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